The price of the new device — which starts shipping June 30 — stays put at $119.

What changed

When Amazon released its fanciest Kindle, the Voyage, late last year, we were impressed by how crisp and clean its text looked, in large part because of a 300 pixels-per-inch display.

The new Paperwhite is getting upgraded to that same resolution, a 2X improvement to the former model. As always, it has a built-in back light, making the screen adjust to bright sunlight or bedtime reading conditions (though, unfortunately, it doesn't come with the front light of the more expensive Voyage).

The Paperwhite will also ship with the font Bookerly that Amazon built in-house to optimize reading speed with less eyestrain. Unless you're a font nerd, you probably won't spend any time obsessing over what Amazon describes as its "warm" and "graceful" look, but you should notice that it makes the reading experience just a bit better.

Bookerly couples with a new typesetting engine which subtlely improves how each "page" looks. Older models of the Paperwhite didn't mimic the format of physical books as well as the new version does, including through the use of better hyphenation and more natural spacing between words.

Amazon says that even with the better, crisper screen and smarter interior, the e-reader will still last for several weeks on one charge.